forked from Imagelibrary/rtems
e2d0c6833e
* cpu.c, cpu_asm.S: Removed files. * nios2-context-initialize.c, nios2-context-switch.S, nios2-fatal-halt.c, nios2-initialize-vectors.c, nios2-initialize.c, nios2-isr-get-level.c, nios2-isr-install-raw-handler.c, nios2-isr-install-vector.c, nios2-isr-is-in-progress.c, nios2-isr-set-level.c, nios2-thread-dispatch-disabled.c, rtems/score/nios2-utility.h: New files. * Makefile.am, preinstall.am: Reflect changes above. * irq.c: Update due to API changes. * rtems/score/cpu.h: New functions _CPU_Initialize_vectors(), _CPU_ISR_Set_level(), and _CPU_Fatal_halt() (instead of macros). Support for external interrupt controller (EIC). Documentation changes.
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
|
|
* Copyright (c) 2011 embedded brains GmbH
|
|
*
|
|
* Copyright (c) 2006 Kolja Waschk (rtemsdev/ixo.de)
|
|
*
|
|
* COPYRIGHT (c) 1989-2006
|
|
* On-Line Applications Research Corporation (OAR).
|
|
*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rtems.com/license/LICENSE.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <rtems/score/cpu.h>
|
|
#include <rtems/score/interr.h>
|
|
#include <rtems/score/nios2-utility.h>
|
|
|
|
uint32_t _CPU_ISR_Get_level( void )
|
|
{
|
|
uint32_t status = _Nios2_Get_ctlreg_status();
|
|
uint32_t level = 0;
|
|
|
|
switch ( _Nios2_Get_ISR_status_mask() ) {
|
|
case NIOS2_ISR_STATUS_MASK_IIC:
|
|
level = (status & NIOS2_STATUS_PIE) == 0;
|
|
break;
|
|
case NIOS2_ISR_STATUS_MASK_EIC_IL:
|
|
level = (status & NIOS2_STATUS_IL_MASK) >> NIOS2_STATUS_IL_OFFSET;
|
|
break;
|
|
case NIOS2_ISR_STATUS_MASK_EIC_RSIE:
|
|
level = (status & NIOS2_STATUS_RSIE) == 0;
|
|
break;
|
|
default:
|
|
/* FIXME */
|
|
_Internal_error_Occurred( INTERNAL_ERROR_CORE, false, 0xdeadbeef );
|
|
break;
|
|
}
|
|
|
|
return level;
|
|
}
|